/* Aidan Hall, personal site. Plain CSS, no build step.
   Layout: sticky identity column + scrolling content (after Brittany Chiang). */

/* ---------- Tokens ---------- */
:root {
  --bg: #fafaf9;
  --bg-2: #f2f2ef;
  --surface: #ffffff;
  --line: #e6e5e1;
  --line-2: #d6d5cf;
  --text: #111113;
  --text-2: #4a4a52;
  --text-3: #76767f;
  --accent: #1f5fd1;
  --accent-ink: #ffffff;
  --accent-soft: rgba(31, 95, 209, 0.08);
  --accent-rgb: 31, 95, 209;
  --dot-rgb: 17, 17, 19;
  --glow-a: 0.07;
  --live: #16a34a;
  --glow: rgba(31, 95, 209, 0.07);
  --shadow: 0 1px 2px rgba(17, 17, 19, 0.04), 0 12px 32px -18px rgba(17, 17, 19, 0.18);
  --radius: 16px;
  --radius-sm: 10px;
  --font: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0a0a0b;
    --bg-2: #111114;
    --surface: #111114;
    --line: #222228;
    --line-2: #303038;
    --text: #ededef;
    --text-2: #a6a6ae;
    --text-3: #75757e;
    --accent: #6f9dff;
    --accent-ink: #08101f;
    --accent-soft: rgba(111, 157, 255, 0.12);
    --accent-rgb: 111, 157, 255;
    --dot-rgb: 237, 237, 239;
    --glow-a: 0.11;
    --live: #3ddc84;
    --glow: rgba(111, 157, 255, 0.10);
    --shadow: 0 1px 0 rgba(255, 255, 255, 0.03) inset, 0 16px 40px -20px rgba(0, 0, 0, 0.7);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #0a0a0b;
  --bg-2: #111114;
  --surface: #111114;
  --line: #222228;
  --line-2: #303038;
  --text: #ededef;
  --text-2: #a6a6ae;
  --text-3: #75757e;
  --accent: #6f9dff;
  --accent-ink: #08101f;
  --accent-soft: rgba(111, 157, 255, 0.12);
  --accent-rgb: 111, 157, 255;
  --dot-rgb: 237, 237, 239;
  --glow-a: 0.11;
  --live: #3ddc84;
  --glow: rgba(111, 157, 255, 0.10);
  --shadow: 0 1px 0 rgba(255, 255, 255, 0.03) inset, 0 16px 40px -20px rgba(0, 0, 0, 0.7);
  color-scheme: dark;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 16px/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1, h2, h3, h4, p, ul, ol, dl, dd, figure, blockquote { margin: 0; }
ul, ol { padding: 0; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
button, input, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
kbd, code, .mono { font-family: var(--mono); }
::selection { background: rgba(var(--accent-rgb), 0.28); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 8px; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip {
  position: fixed; left: 16px; top: -48px; z-index: 100;
  padding: 8px 14px; border-radius: 8px;
  background: var(--text); color: var(--bg); text-decoration: none; font-size: 14px;
  transition: top .2s;
}
.skip:focus { top: 12px; }

.ico { width: 18px; height: 18px; flex: none; }

/* ---------- Background effects: cursor glow + lit dot grid ---------- */
.fx { position: fixed; inset: 0; z-index: 0; pointer-events: none; }
.fx__glow {
  position: absolute; inset: 0;
  background: radial-gradient(640px circle at var(--mx, 70%) var(--my, -10%), rgba(var(--accent-rgb), var(--glow-a)), transparent 70%);
}
.fx__dots {
  position: absolute; inset: 0;
  background-image: radial-gradient(rgba(var(--accent-rgb), 0.9) 1px, transparent 1.5px);
  background-size: 24px 24px;
  -webkit-mask-image: radial-gradient(220px circle at var(--mx, -999px) var(--my, -999px), rgba(0, 0, 0, 0.45), transparent 80%);
  mask-image: radial-gradient(220px circle at var(--mx, -999px) var(--my, -999px), rgba(0, 0, 0, 0.45), transparent 80%);
}

/* ---------- Buttons, chips, tags ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  height: 42px; padding: 0 18px;
  border: 1px solid var(--line-2); border-radius: 999px;
  background: var(--surface); color: var(--text);
  font-size: 15px; font-weight: 500; text-decoration: none; white-space: nowrap;
  transition: background .2s, border-color .2s, transform .2s var(--ease), box-shadow .2s;
}
.btn:hover { border-color: var(--text-3); }
.btn:active { transform: translateY(1px); }
.btn .ico { width: 16px; height: 16px; }
.btn--primary { background: var(--text); color: var(--bg); border-color: var(--text); }
.btn--primary:hover { border-color: var(--text); box-shadow: 0 6px 20px -8px rgba(var(--dot-rgb), 0.45); }
.btn--sm { height: 34px; padding: 0 13px; font-size: 13.5px; gap: 6px; }
.btn--sm .ico { width: 14px; height: 14px; opacity: .75; }

.icon-btn {
  display: inline-grid; place-items: center;
  width: 36px; height: 36px;
  border: 1px solid var(--line); border-radius: 10px;
  background: color-mix(in srgb, var(--surface) 70%, transparent); color: var(--text-2);
  transition: color .2s, background .2s, border-color .2s;
}
.icon-btn:hover { color: var(--text); background: var(--bg-2); border-color: var(--line-2); }
.icon-btn:disabled { opacity: .35; cursor: default; }

.icon-link {
  display: inline-grid; place-items: center; width: 38px; height: 38px;
  border-radius: 10px; color: var(--text-3);
  transition: color .2s, background .2s, transform .2s var(--ease);
}
.icon-link:hover { color: var(--text); transform: translateY(-1px); }
.icon-link .ico { width: 20px; height: 20px; }

.kbd-btn {
  display: inline-flex; align-items: center; gap: 8px; height: 36px; padding: 0 6px 0 11px;
  border: 1px solid var(--line); border-radius: 10px;
  background: color-mix(in srgb, var(--surface) 70%, transparent); color: var(--text-3);
  font-size: 13.5px; transition: border-color .2s, color .2s;
}
.kbd-btn:hover { border-color: var(--line-2); color: var(--text-2); }
.kbd-btn .ico { width: 15px; height: 15px; }
kbd {
  display: inline-flex; align-items: center; height: 22px; padding: 0 6px;
  border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 6px;
  background: var(--bg-2); color: var(--text-2); font-size: 11.5px; font-weight: 500;
}

.chip {
  height: 30px; padding: 0 12px;
  border: 1px solid var(--line); border-radius: 999px;
  background: transparent; color: var(--text-2);
  font-size: 13.5px; font-weight: 500;
  display: inline-flex; align-items: center; gap: 7px;
  transition: color .2s, background .2s, border-color .2s;
}
.chip:hover { color: var(--text); border-color: var(--line-2); }
.chip[aria-pressed="true"] { background: var(--text); color: var(--bg); border-color: var(--text); }
.chip__n { font-family: var(--mono); font-size: 11.5px; opacity: .6; }

.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.tags span, .tag-link {
  display: inline-flex; align-items: center; gap: 4px;
  height: 25px; padding: 0 10px;
  border-radius: 999px; background: var(--accent-soft);
  color: var(--accent); font: 500 12px/1 var(--mono); letter-spacing: -0.01em;
}
.tag-link { position: relative; z-index: 2; text-decoration: none; background: transparent; border: 1px solid var(--line-2); color: var(--text-2); }
.tag-link:hover { color: var(--accent); border-color: var(--accent); }
.tag-link .ico { width: 12px; height: 12px; }
.tags--plain span { background: var(--bg-2); border: 1px solid var(--line); color: var(--text-2); font-family: var(--font); font-size: 12.5px; letter-spacing: 0; }

.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--text-3); flex: none; }
.dot--live { background: var(--live); animation: pulse 2.4s infinite; }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--live) 55%, transparent); }
  70% { box-shadow: 0 0 0 7px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* Cursor spotlight inside cards */
.spot { position: relative; isolation: isolate; }
.spot::before {
  content: ""; position: absolute; inset: -1px; z-index: -1; border-radius: inherit; pointer-events: none;
  background: radial-gradient(420px circle at var(--cx, 50%) var(--cy, 0%), var(--glow), transparent 45%);
  opacity: 0; transition: opacity .35s;
}
.spot:hover::before { opacity: 1; }

/* ---------- Layout ---------- */
.layout {
  position: relative; z-index: 1;
  max-width: 1280px; margin: 0 auto; padding: 0 56px;
  display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 64px;
}

.topbar { display: none; }

/* ---------- Identity column ---------- */
.side {
  position: sticky; top: 0;
  height: 100vh; height: 100dvh;
  display: flex; flex-direction: column; justify-content: space-between;
  padding: 84px 0 40px;
}

.pill {
  display: inline-flex; align-items: center; gap: 10px; align-self: flex-start;
  padding: 5px 13px 5px 11px; margin-bottom: 26px;
  border: 1px solid var(--line); border-radius: 999px;
  background: color-mix(in srgb, var(--surface) 75%, transparent);
  color: var(--text-2); font-size: 13px; font-weight: 500;
}

.side__name { font-size: clamp(44px, 4.6vw, 60px); line-height: 1; font-weight: 600; letter-spacing: -0.05em; }
.side__name a { text-decoration: none; }
.side__role { margin-top: 16px; font-size: 17px; color: var(--text); min-height: 1.6em; }
.side__prompt { color: var(--accent); }
.caret {
  display: inline-block; width: .55em; height: 1.05em; margin-left: 3px;
  background: var(--accent); vertical-align: -0.17em; opacity: .85;
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }
.side__tag { margin-top: 14px; max-width: 36ch; text-wrap: pretty; color: var(--text-2); font-size: 16.5px; }
.side__cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }

.side__nav { display: flex; flex-direction: column; margin-top: 56px; width: max-content; }
.side__nav a {
  display: flex; align-items: center; gap: 16px; padding: 9px 0;
  color: var(--text-3); text-decoration: none;
  font: 500 12px/1 var(--mono); text-transform: uppercase; letter-spacing: .14em;
  transition: color .2s;
}
.side__line { width: 32px; height: 1px; background: currentColor; opacity: .6; transition: width .25s var(--ease), opacity .25s; }
.side__nav kbd { opacity: 0; height: 19px; font-size: 10.5px; transition: opacity .2s; }
.side__nav a:hover, .side__nav a.is-active { color: var(--text); }
.side__nav a:hover .side__line, .side__nav a.is-active .side__line { width: 64px; opacity: 1; }
.side__nav a:hover kbd { opacity: 1; }

.side__foot { display: flex; align-items: center; gap: 4px; }
.side__foot .icon-link:first-child { margin-left: -9px; }
.side__spacer { flex: 1; }
.side__foot .kbd-btn { margin-right: 6px; }

/* ---------- Content column ---------- */
.content { padding: 84px 0 40px; min-width: 0; }
.sec { margin-bottom: 120px; scroll-margin-top: 72px; }

.kicker {
  display: flex; align-items: center; gap: 10px; margin-bottom: 24px;
  color: var(--text); font: 500 12px/1 var(--mono); text-transform: uppercase; letter-spacing: .14em;
}
.kicker span { color: var(--accent); }
.sec__bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 20px; }
.sec__bar .kicker { margin-bottom: 0; }
.mini-title { color: var(--text-3); font: 500 11.5px/1 var(--mono); text-transform: uppercase; letter-spacing: .1em; }

/* About: bio toggle (after Lee Robinson) */
.bio__tabs {
  display: inline-flex; padding: 3px; margin-bottom: 16px;
  border: 1px solid var(--line); border-radius: 10px; background: var(--bg-2);
}
.bio__tabs button {
  height: 28px; padding: 0 12px; border: 0; border-radius: 7px; background: transparent;
  color: var(--text-3); font: 500 12.5px/1 var(--mono);
  transition: background .2s, color .2s, box-shadow .2s;
}
.bio__tabs button[aria-selected="true"] { background: var(--surface); color: var(--text); box-shadow: 0 1px 2px rgba(0, 0, 0, .12); }
.bio__panel p { color: var(--text-2); font-size: 17px; line-height: 1.65; }
.bio__panel p + p { margin-top: 14px; }
.bio__panel b { color: var(--text); font-weight: 500; }
.bio__panel a { color: var(--text); font-weight: 500; text-decoration-color: color-mix(in srgb, var(--accent) 60%, transparent); }
.bio__panel a:hover { color: var(--accent); }
.js .bio__panel[data-hidden] { display: none; }
.bio__panel.is-entering { animation: fadeUp .35s var(--ease); }
@keyframes fadeUp { from { opacity: 0; transform: translateY(4px); } }

/* Logo chips (after Anthony Fu) */
.lchips { display: grid; gap: 10px; margin-top: 28px; }
.lchips > div { display: grid; grid-template-columns: 104px minmax(0, 1fr); align-items: start; gap: 12px; }
.lchips dt { color: var(--text-3); font-size: 14.5px; padding-top: 4px; }
.lchips dd { display: flex; flex-wrap: wrap; gap: 6px; }
.lchip {
  display: inline-flex; align-items: center; gap: 7px;
  height: 32px; padding: 0 11px 0 7px;
  border: 1px solid var(--line); border-radius: 9px;
  background: color-mix(in srgb, var(--surface) 85%, transparent);
  color: var(--text); font-size: 14px; font-weight: 500; text-decoration: none;
  transition: border-color .2s, background .2s, transform .2s var(--ease);
}
a.lchip:hover { border-color: var(--line-2); background: var(--bg-2); transform: translateY(-1px); }
.lchip img { width: 18px; height: 18px; border-radius: 5px; }
.lchip__glyph { width: 18px; height: 18px; border-radius: 5px; display: grid; place-items: center; background: var(--text); color: var(--bg); }
.lchip__glyph .ico { width: 12px; height: 12px; }
.lchip--plain { padding: 0 11px; color: var(--text-2); background: transparent; border-style: dashed; }

/* Live status card */
.status { margin-top: 32px; padding: 6px 6px 0; font-size: 14px; }
.status__head { display: flex; justify-content: space-between; align-items: center; padding: 9px 12px 11px; color: var(--text-3); font-size: 12.5px; }
.status__state { display: inline-flex; align-items: center; gap: 8px; color: var(--text-2); }
.status__state.is-cached .dot { background: var(--text-3); animation: none; }
.status__rows { list-style: none; border: 1px solid var(--line); border-radius: 12px; background: var(--bg); overflow: hidden; }
.status__rows li { display: grid; grid-template-columns: 34px minmax(0, 1fr) auto; gap: 12px; align-items: center; padding: 11px 13px; }
.status__rows li + li { border-top: 1px solid var(--line); }
.status__icon { width: 34px; height: 34px; border-radius: 9px; display: grid; place-items: center; background: var(--bg-2); border: 1px solid var(--line); color: var(--text-2); }
.status__icon .ico { width: 17px; height: 17px; }
.status__icon--img { border: 0; }
.status__main { display: flex; flex-direction: column; min-width: 0; line-height: 1.3; }
.status__main b { font-weight: 600; font-size: 14.5px; }
.status__main span { color: var(--text-3); font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.status__meta { display: flex; flex-direction: column; align-items: flex-end; line-height: 1.3; }
.status__meta b { font-weight: 500; font-size: 13px; }
.status__meta span { color: var(--text-3); font-size: 12.5px; white-space: nowrap; }
.status__foot { padding: 9px 12px 11px; color: var(--text-3); font-size: 11.5px; }

/* Metrics */
.metrics { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 32px; border-top: 1px solid var(--line); }
.metrics > div { display: flex; flex-direction: column-reverse; justify-content: flex-end; gap: 6px; padding: 22px 0 22px; border-bottom: 1px solid var(--line); }
.metrics > div:nth-child(even) { padding-left: 24px; border-left: 1px solid var(--line); }
.metrics dd { font-size: 34px; font-weight: 600; letter-spacing: -0.04em; line-height: 1; font-variant-numeric: tabular-nums; white-space: nowrap; }
.metrics dd small { font-size: 13px; font-weight: 500; letter-spacing: 0; color: var(--text-3); margin-right: 2px; }
.metrics dt { color: var(--text-3); font-size: 13.5px; line-height: 1.4; max-width: 26ch; }

/* ---------- Marrow ---------- */
.product { display: flex; gap: 18px; align-items: center; }
.product__icon { width: 64px; height: 64px; border-radius: 16px; box-shadow: 0 10px 30px -12px rgba(var(--accent-rgb), .55); }
.product__name { font-size: 30px; line-height: 1.1; font-weight: 600; letter-spacing: -0.035em; }
.product__sub { margin-top: 6px; color: var(--text-2); font-size: 15.5px; }
.link-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }

.gallery { position: relative; margin: 24px 0 24px; }
.gallery__track {
  display: grid; grid-auto-flow: column; grid-auto-columns: 172px; gap: 12px;
  overflow-x: auto; overscroll-behavior-x: contain; scroll-snap-type: x mandatory;
  padding: 4px 2px 14px; scrollbar-width: none;
  -webkit-mask-image: linear-gradient(90deg, #000 82%, transparent);
  mask-image: linear-gradient(90deg, #000 82%, transparent);
}
.gallery__track.at-end { -webkit-mask-image: none; mask-image: none; }
.gallery__track::-webkit-scrollbar { display: none; }
.gallery__track:focus-visible { outline-offset: 4px; }
.gallery__track img {
  width: 100%; height: auto; aspect-ratio: 520 / 1130; scroll-snap-align: start;
  border-radius: 16px; border: 1px solid var(--line); background: #eef0f4;
}
.gallery__nav { display: flex; gap: 8px; justify-content: flex-end; }

.specs { padding: 4px 20px; }
.specs > div { display: grid; grid-template-columns: 88px minmax(0, 1fr); gap: 14px; padding: 12px 0; }
.specs > div + div { border-top: 1px solid var(--line); }
.specs dt { color: var(--text-3); font: 500 11.5px/1.9 var(--mono); text-transform: uppercase; letter-spacing: .06em; }
.specs dd { font-size: 14.5px; }

.highlights { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 24px 28px; counter-reset: hl; padding: 28px 0 4px; }
.highlights li { counter-increment: hl; }
.highlights li::before { content: "/0" counter(hl); display: block; margin-bottom: 8px; color: var(--accent); font: 500 12px/1 var(--mono); }
.highlights h4 { font-size: 16px; font-weight: 600; letter-spacing: -0.015em; }
.highlights p { margin-top: 5px; color: var(--text-2); font-size: 14.5px; }

/* Architecture diagram */
.arch { margin-top: 32px; overflow: hidden; }
.arch__cap {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding: 12px 18px; border-bottom: 1px solid var(--line); color: var(--text-3); font-size: 12.5px;
}
.arch__cap .mono { color: var(--text-2); font-size: 12px; }
.arch__grid {
  position: relative; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 36px;
  padding: 24px 18px 26px; align-items: center;
  background-image: radial-gradient(rgba(var(--dot-rgb), .10) 1px, transparent 1px);
  background-size: 18px 18px;
}
.arch__wires { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; overflow: visible; }
.arch__col { position: relative; display: flex; flex-direction: column; gap: 10px; }
.arch__label { color: var(--text-3); font: 500 10.5px/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 2px; }
.node {
  position: relative; display: flex; flex-direction: column; gap: 1px;
  padding: 9px 11px; border-radius: 11px; border: 1px solid var(--line-2);
  background: var(--surface); outline-offset: 2px;
  transition: border-color .2s, box-shadow .2s;
}
.node b { font-size: 13.5px; font-weight: 600; }
.node span { color: var(--text-3); font: 400 11px/1.45 var(--mono); }
.node .node__to { color: var(--accent); }
.node--core { border-color: color-mix(in srgb, var(--accent) 55%, var(--line-2)); background: color-mix(in srgb, var(--accent) 7%, var(--surface)); padding: 12px 13px; }
.node--core span::before { content: "› "; color: var(--accent); }
.node.is-hot { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.wire { fill: none; stroke: var(--line-2); stroke-width: 1.5; transition: stroke .2s, opacity .2s; }
.wire--pulse { stroke: var(--accent); stroke-width: 2; stroke-linecap: round; }
.arch__grid.is-tracing .wire--pulse:not(.is-hot) { opacity: .15; }
.wire.is-hot:not(.wire--pulse) { stroke: color-mix(in srgb, var(--accent) 60%, var(--line-2)); }
.wire-end { fill: var(--line-2); }

.pipeline {
  list-style: none; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 6px;
  padding: 14px 18px; border-top: 1px solid var(--line); background: var(--bg);
}
.pipeline::before { content: "release"; margin-right: 6px; color: var(--text-3); font: 500 10.5px/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; }
.pipeline li { display: inline-flex; align-items: center; gap: 6px; color: var(--text-2); font: 500 12px/1.4 var(--mono); }
.pipeline li + li::before { content: "→"; color: var(--text-3); margin-right: 2px; }
.pipeline li:last-child { color: var(--accent); }

/* ---------- Rows: experience and projects (after Brittany Chiang) ---------- */
.rows { list-style: none; display: grid; gap: 6px; }
.row {
  position: relative; display: grid; grid-template-columns: 116px minmax(0, 1fr); gap: 20px;
  margin: 0 -20px; padding: 20px; border-radius: 14px; border: 1px solid transparent;
}
.js .row.reveal.in { transition: background .25s, border-color .25s, opacity .25s, box-shadow .25s; transition-delay: 0s; }
.row[hidden] { display: none; }
.row__when { color: var(--text-3); font-size: 12px; letter-spacing: .03em; text-transform: uppercase; padding-top: 4px; white-space: nowrap; }
.row__title { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; font-size: 17px; font-weight: 600; letter-spacing: -0.015em; line-height: 1.35; }
.row__title a { display: inline-flex; align-items: center; gap: 4px; text-decoration: none; transition: color .2s; }
.row__title a .ico { width: 14px; height: 14px; transition: transform .2s var(--ease); }
.stretch::after { content: ""; position: absolute; inset: 0; border-radius: inherit; z-index: 1; }
.row__meta { margin-top: 2px; color: var(--text-3); font-size: 14px; }
.row__body > p:not([class]) { margin-top: 8px; color: var(--text-2); font-size: 15px; }
.row__body ul { margin-top: 10px; padding-left: 18px; color: var(--text-2); display: grid; gap: 7px; font-size: 15px; }
.row__body li::marker { color: var(--text-3); }
.row__body strong { color: var(--text); font-weight: 600; }
.row:focus-within { border-color: var(--line); }
.proof {
  display: inline-flex; align-items: center; gap: 5px; height: 22px; padding: 0 8px;
  border-radius: 999px; border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  color: var(--accent); font: 500 11.5px/1 var(--mono); letter-spacing: 0;
}
.proof .ico { width: 12px; height: 12px; }

@media (hover: hover) and (pointer: fine) {
  .row:hover { background: color-mix(in srgb, var(--surface) 75%, transparent); border-color: var(--line); box-shadow: var(--shadow); }
  .row:hover .row__title a { color: var(--accent); }
  .row:hover .row__title a .ico { transform: translate(2px, -2px); }
  .rows[data-dim]:hover > .row:not(:hover) { opacity: .5; }
}

.row.is-flash { animation: flash 1.4s var(--ease); }
@keyframes flash { 0%, 40% { background: var(--accent-soft); border-color: var(--accent); } 100% { background: transparent; } }
.card.is-flash { animation: flashCard 1.4s var(--ease); }
@keyframes flashCard { 0%, 40% { box-shadow: 0 0 0 4px var(--accent-soft), var(--shadow); border-color: var(--accent); } }

.more { margin-top: 22px; }
.more a { display: inline-flex; align-items: center; gap: 6px; color: var(--text); font-weight: 500; font-size: 15px; text-decoration: none; border-bottom: 1px solid var(--line-2); padding-bottom: 2px; transition: border-color .2s, color .2s; }
.more a:hover { color: var(--accent); border-color: var(--accent); }
.more .ico { width: 14px; height: 14px; transition: transform .2s var(--ease); }
.more a:hover .ico { transform: translate(2px, -2px); }

.earlier { margin-top: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: color-mix(in srgb, var(--surface) 80%, transparent); }
.earlier summary { list-style: none; cursor: pointer; display: flex; align-items: center; gap: 10px; padding: 14px 18px; font-weight: 500; color: var(--text-2); }
.earlier summary::-webkit-details-marker { display: none; }
.earlier summary::after { content: "+"; margin-left: auto; font: 400 20px/1 var(--mono); color: var(--text-3); transition: transform .25s var(--ease); }
.earlier[open] summary::after { transform: rotate(45deg); }
.earlier summary:hover { color: var(--text); }
.earlier__count { font-size: 12px; padding: 2px 8px; border-radius: 999px; background: var(--bg-2); color: var(--text-3); }
.earlier ul { list-style: none; border-top: 1px solid var(--line); }
.earlier li { padding: 14px 18px; color: var(--text-2); font-size: 15px; }
.earlier li + li { border-top: 1px solid var(--line); }
.earlier li b { color: var(--text); font-weight: 600; }
.earlier li .mono { display: block; color: var(--text-3); font-size: 12px; margin-top: 2px; }
.earlier li p { margin-top: 4px; font-size: 14.5px; }

/* Recommendation */
.quote { margin-top: 28px; padding: 30px 30px 24px; }
.quote__mark { width: 28px; height: 28px; color: var(--accent); }
.quote blockquote { margin-top: 14px; }
.quote blockquote p { color: var(--text-2); font-size: 16px; }
.quote blockquote p + p { margin-top: 10px; }
.quote .quote__lead { color: var(--text); font-size: 23px; line-height: 1.3; font-weight: 500; letter-spacing: -0.02em; }
.quote figcaption { display: flex; align-items: center; flex-wrap: wrap; gap: 12px 14px; margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line); }
.quote figcaption > span:nth-child(2) { display: flex; flex-direction: column; line-height: 1.35; }
.quote figcaption b { font-weight: 600; }
.quote figcaption span span { color: var(--text-3); font-size: 13.5px; }
.quote__avatar { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; background: var(--bg-2); border: 1px solid var(--line-2); color: var(--text-2); font: 600 13px/1 var(--mono); }
.quote__src { margin-left: auto; display: inline-flex; align-items: center; gap: 4px; color: var(--text-3); font-size: 12.5px; text-decoration: none; }
.quote__src:hover { color: var(--accent); }
.quote__src .ico { width: 13px; height: 13px; }

/* ---------- Filters ---------- */
.filters { display: flex; gap: 6px; flex-wrap: wrap; }

/* ---------- Education ---------- */
.edu { padding: 22px; }
.edu__head { display: flex; align-items: flex-start; gap: 14px; }
.edu__head > div { flex: 1; min-width: 0; }
.edu__logo { width: 40px; height: 40px; border-radius: 10px; }
.edu h3, .certs h3, .awards h3 { font-size: 18px; font-weight: 600; letter-spacing: -0.02em; }
.edu__head p { color: var(--text-2); font-size: 14.5px; margin-top: 2px; }
.edu__when { color: var(--text-3); font-size: 12.5px; white-space: nowrap; padding-top: 3px; }
.edu__stats { display: flex; flex-wrap: wrap; gap: 6px 18px; margin-top: 16px; color: var(--text-2); font-size: 14.5px; }
.edu__stats b { color: var(--text); font-weight: 600; }
.edu .tags span { height: 24px; font-size: 12.5px; }
.edu__now, .edu__acts { margin-top: 14px; color: var(--text-2); font-size: 14px; }
.edu__now .mono, .edu__acts .mono { display: inline-block; margin-right: 8px; padding: 2px 8px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-size: 11px; }
.edu__acts .mono { background: var(--bg-2); color: var(--text-3); }
.edu__hs { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); }
.edu__hs h4 { font-size: 15px; font-weight: 600; }
.edu__hs p { color: var(--text-3); font-size: 13.5px; }

.certs { margin-top: 16px; padding: 20px 22px 8px; }
.certs ul { list-style: none; margin-top: 8px; }
.certs li { display: flex; justify-content: space-between; gap: 16px; padding: 11px 0; border-top: 1px solid var(--line); font-size: 14.5px; }
.certs li:first-child { border-top: 0; }
.certs li > span:first-child { display: flex; flex-direction: column; }
.certs b { font-weight: 500; }
.certs small { color: var(--text-3); font-size: 11.5px; margin-top: 2px; }
.certs li > .mono { color: var(--text-3); font-size: 12px; padding-top: 2px; white-space: nowrap; }

.awards { margin-top: 16px; padding: 22px 22px 8px; }
.awards .mini-title { margin: 18px 0 4px; }
.awards ul { list-style: none; }
.awards li { display: flex; justify-content: space-between; gap: 16px; padding: 11px 0; border-top: 1px solid var(--line); }
.awards li > span:first-child { display: flex; flex-direction: column; gap: 1px; }
.awards b { font-weight: 500; font-size: 15px; }
.awards small { color: var(--text-3); font-size: 13px; }
.awards li > .mono { color: var(--text-3); font-size: 12px; padding-top: 3px; white-space: nowrap; }

.skills { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 32px; border-top: 1px solid var(--line); }
.skills > div { padding: 18px 20px 18px 0; border-bottom: 1px solid var(--line); }
.skills > div:nth-child(even) { padding-left: 20px; border-left: 1px solid var(--line); }
.skills h3 { color: var(--text-3); font: 500 11.5px/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 9px; }
.skills p { color: var(--text-2); font-size: 14.5px; }

/* ---------- Contact ---------- */
.contact { padding: 30px; position: relative; overflow: hidden; }
.contact::after {
  content: ""; position: absolute; right: -140px; top: -180px; width: 420px; height: 420px; border-radius: 50%; pointer-events: none;
  background: radial-gradient(circle, rgba(var(--accent-rgb), .16), transparent 65%);
}
.contact__title { font-size: 30px; line-height: 1.1; font-weight: 600; letter-spacing: -0.035em; }
.contact__sub { margin-top: 8px; color: var(--text-2); font-size: 15.5px; }
.contact__links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; padding-top: 20px; border-top: 1px solid var(--line); position: relative; z-index: 1; }
.contact__links .ico { width: 15px; height: 15px; opacity: 1; }

.form { display: grid; gap: 14px; margin-top: 22px; position: relative; z-index: 1; }
.form__pair { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { display: grid; gap: 6px; }
.field label { color: var(--text-2); font-size: 13.5px; font-weight: 500; }
.field input, .field textarea {
  width: 100%; padding: 10px 13px; border: 1px solid var(--line-2); border-radius: var(--radius-sm);
  background: var(--bg); font-size: 16px; resize: vertical; transition: border-color .2s, box-shadow .2s;
}
.field textarea { min-height: 108px; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"] { border-color: #e5484d; }
.field--trap { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form__row { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.form__status { color: var(--text-2); font-size: 14px; }
.form__status.is-ok { color: var(--live); }
.form__status.is-err { color: #e5484d; }

/* ---------- Footer ---------- */
.footer { padding: 8px 0 24px; color: var(--text-3); font-size: 14px; max-width: 56ch; }
.footer__meta { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 18px; margin-top: 12px; font-size: 12px; }
.link-btn { border: 0; background: none; padding: 0; color: var(--text-3); display: inline-flex; align-items: center; gap: 6px; font-family: var(--mono); font-size: 12px; }
.link-btn:hover { color: var(--text); }

/* ---------- Command palette ---------- */
.cmdk {
  width: min(620px, calc(100vw - 32px)); max-height: min(560px, calc(100dvh - 120px));
  margin: 12vh auto auto; padding: 0; overflow: hidden;
  border: 1px solid var(--line-2); border-radius: 18px;
  background: var(--surface); color: var(--text);
  box-shadow: 0 40px 120px -30px rgba(0, 0, 0, .55);
}
.cmdk[open] { display: flex; flex-direction: column; animation: cmdkIn .18s var(--ease); }
.cmdk::backdrop { background: rgba(10, 10, 12, .42); -webkit-backdrop-filter: blur(3px); backdrop-filter: blur(3px); }
@keyframes cmdkIn { from { opacity: 0; transform: translateY(-6px) scale(.985); } }
.cmdk__search { display: flex; align-items: center; gap: 12px; padding: 0 16px; border-bottom: 1px solid var(--line); color: var(--text-3); }
.cmdk__input { flex: 1; min-width: 0; height: 56px; border: 0; background: transparent; outline: none; font-size: 16px; color: var(--text); }
.cmdk__input::placeholder { color: var(--text-3); }
.cmdk__list { list-style: none; overflow-y: auto; padding: 6px 8px 8px; flex: 1; }
.cmdk__group { padding: 12px 10px 6px; color: var(--text-3); font: 500 11px/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; }
.cmdk__item { display: flex; align-items: center; gap: 12px; padding: 10px; border-radius: 10px; cursor: pointer; font-size: 15px; color: var(--text-2); }
.cmdk__item .ico { width: 17px; height: 17px; color: var(--text-3); }
.cmdk__item mark { background: none; color: var(--text); font-weight: 600; }
.cmdk__item .hint { margin-left: auto; color: var(--text-3); font: 400 12px/1 var(--mono); white-space: nowrap; }
.cmdk__item[aria-selected="true"] { background: var(--accent-soft); color: var(--text); }
.cmdk__item[aria-selected="true"] .ico { color: var(--accent); }
.cmdk__empty { padding: 28px 12px; text-align: center; color: var(--text-3); font-size: 14px; }
.cmdk__foot { display: flex; gap: 18px; padding: 10px 16px; border-top: 1px solid var(--line); color: var(--text-3); font-size: 12px; }
.cmdk__foot span { display: inline-flex; align-items: center; gap: 4px; }
.cmdk__foot kbd, .cmdk__search kbd { height: 20px; font-size: 11px; }

/* ---------- Reveal on scroll (only when JS runs) ---------- */
.js .reveal { opacity: 0; transform: translateY(12px); transition: opacity .7s var(--ease), transform .7s var(--ease); transition-delay: var(--d, 0s); }
.js .reveal.in { opacity: 1; transform: none; }

/* View transitions: theme switch reveals from the toggle */
html.vt-theme::view-transition-old(root),
html.vt-theme::view-transition-new(root) { animation: none; mix-blend-mode: normal; }
::view-transition-group(*) { animation-duration: .35s; animation-timing-function: var(--ease); }

/* ---------- Light/dark icon swap ---------- */
.i-sun { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .i-sun { display: block; }
  :root:not([data-theme="light"]) .i-moon { display: none; }
}
:root[data-theme="dark"] .i-sun { display: block; }
:root[data-theme="dark"] .i-moon { display: none; }

/* ---------- Responsive ---------- */
@media (max-height: 820px) and (min-width: 1025px) {
  .side { padding-top: 56px; padding-bottom: 28px; }
  .side__nav { margin-top: 32px; }
  .side__nav a { padding: 7px 0; }
  .pill { margin-bottom: 18px; }
}

@media (max-width: 1180px) and (min-width: 1025px) {
  .layout { padding: 0 40px; gap: 48px; }
}

@media (max-width: 1024px) {
  html { scroll-padding-top: 108px; }
  .topbar {
    position: sticky; top: 0; z-index: 40;
    display: flex; align-items: center; justify-content: space-between;
    height: 56px; padding: 0 24px;
    background: color-mix(in srgb, var(--bg) 92%, transparent);
    -webkit-backdrop-filter: saturate(1.5) blur(14px); backdrop-filter: saturate(1.5) blur(14px);
    border-bottom: 1px solid transparent; transition: border-color .25s;
  }
  .topbar.is-scrolled { border-bottom-color: var(--line); }
  .brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 600; letter-spacing: -0.01em; }
  .brand__mark { width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center; background: var(--text); color: var(--bg); font: 600 11.5px/1 var(--mono); }
  .topbar__tools { display: flex; gap: 8px; }

  .layout { grid-template-columns: 1fr; gap: 0; padding: 0 24px; max-width: 720px; }
  .side { position: static; height: auto; padding: 40px 0 8px; }
  .side__nav, .side__foot .kbd-btn, .side__foot [data-theme-toggle], .side__spacer { display: none; }
  .side__foot { margin-top: 18px; }
  .content { padding-top: 40px; }
  .sec { margin-bottom: 88px; scroll-margin-top: 56px; }
  .kicker {
    position: sticky; top: 56px; z-index: 5;
    margin: 0 -24px 20px; padding: 14px 24px;
    background: color-mix(in srgb, var(--bg) 94%, transparent);
    -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  }
  .sec__bar { position: sticky; top: 56px; z-index: 5; margin: 0 -24px 16px; padding: 10px 24px; background: color-mix(in srgb, var(--bg) 94%, transparent); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); }
  .sec__bar .kicker { position: static; margin: 0; padding: 0; background: none; -webkit-backdrop-filter: none; backdrop-filter: none; }
  .fx__dots { display: none; }
}

@media (max-width: 640px) {
  .layout, .topbar { padding-left: 16px; padding-right: 16px; }
  .kicker, .sec__bar { margin-left: -16px; margin-right: -16px; padding-left: 16px; padding-right: 16px; }
  .side { padding-top: 32px; }
  .side__name { font-size: 48px; }
  .lchips > div { grid-template-columns: 1fr; gap: 6px; }
  .lchips dt { padding-top: 0; font-size: 13px; }
  .metrics dd { font-size: 28px; }
  .metrics > div:nth-child(even) { padding-left: 16px; }
  .gallery__track { grid-auto-columns: 58vw; }
  .gallery__nav { display: none; }
  .highlights { grid-template-columns: 1fr; gap: 20px; }
  .specs { padding: 4px 16px; }
  .specs > div { grid-template-columns: 1fr; gap: 2px; }
  .arch__wires { display: none; }
  .arch__grid { grid-template-columns: 1fr; gap: 26px; }
  .arch__col:not(:last-child)::after { content: "↓"; position: absolute; left: 50%; bottom: -22px; transform: translateX(-50%); color: var(--text-3); font: 400 15px/1 var(--mono); }
  .arch__hint { display: none; }
  .row { grid-template-columns: 1fr; gap: 6px; margin: 0; padding: 16px 0; border-radius: 0; border: 0; border-top: 1px solid var(--line); }
  .rows { gap: 0; }
  .quote { padding: 24px 20px 20px; }
  .quote .quote__lead { font-size: 20px; }
  .quote__src { margin-left: 0; }
  .contact { padding: 24px 18px; }
  .form__pair { grid-template-columns: 1fr; }
  .skills { grid-template-columns: 1fr; }
  .skills > div:nth-child(even) { padding-left: 0; border-left: 0; }
  .footer__meta .link-btn { display: none; }
  .cmdk { margin-top: 10vh; }
  .cmdk__foot { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .js .reveal { opacity: 1; transform: none; }
  .caret { animation: none; }
}

@media print {
  .fx, .topbar, .side__nav, .side__foot, .gallery, .arch, .contact form, .footer__meta, .cmdk, .filters, .status__foot, .bio__tabs { display: none !important; }
  .layout { display: block; }
  .side { position: static; height: auto; padding: 0 0 24px; }
  body { background: #fff; color: #000; }
  .js .bio__panel[data-hidden] { display: block; }
  .card { box-shadow: none; }
  .js .reveal { opacity: 1; transform: none; }
}